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US20050062037A1 - Electrical conductor - Google Patents

Electrical conductor Download PDF

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Publication number
US20050062037A1
US20050062037A1 US10/494,576 US49457604A US2005062037A1 US 20050062037 A1 US20050062037 A1 US 20050062037A1 US 49457604 A US49457604 A US 49457604A US 2005062037 A1 US2005062037 A1 US 2005062037A1
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US
United States
Prior art keywords
ground conductor
exposed
metal layer
site
electrical line
Prior art date
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Granted
Application number
US10/494,576
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US7507904B2 (en
Inventor
Nico Naas
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Harman Becker Automotive Systems GmbH
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Individual
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Assigned to HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH reassignment HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NAAS, NICO
Publication of US20050062037A1 publication Critical patent/US20050062037A1/en
Application granted granted Critical
Publication of US7507904B2 publication Critical patent/US7507904B2/en
Assigned to JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT reassignment JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT SECURITY AGREEMENT Assignors: HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH
Assigned to HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED, HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH reassignment HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED RELEASE Assignors: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Assigned to JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT reassignment JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT SECURITY AGREEMENT Assignors: HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH, HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
Assigned to HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH, HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED reassignment HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH RELEASE Assignors: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/08—Flat or ribbon cables
    • H01B7/0861—Flat or ribbon cables comprising one or more screens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • H01B11/10—Screens specially adapted for reducing interference from external sources
    • H01B11/1091—Screens specially adapted for reducing interference from external sources with screen grounding means, e.g. drain wires

Definitions

  • the invention relates to an electrical line which comprises at least one insulated conductor.
  • electrical lines are, for example, surrounded by a braid of electrically conductive material.
  • the braid is fabricated, for example, from metal wire or threads composed of electrically conductive polymers. Both the process of actually fabricating such braids and the process of jacketing an electrical line or electrical cable with a braid of this type requires some effort which is reflected in high fabrication costs.
  • Optimal shielding is achieved only by using a solid jacket, such as that found in a solid-jacket coaxial line, also called a semi-rigid coaxial line.
  • a solid-jacket coaxial line also called a semi-rigid coaxial line.
  • the shielding outer line is made in a semi-rigid form, using copper tubing, for example.
  • the goal of the invention is therefore to design an electrical line so as to combine both high flexibility and high shielding, while at the same time reducing the cost of fabrication significantly below that of shielded lines of prior art.
  • the invention achieves this goal through the features indicated in claim 1 by providing at least one ground conductor which is exposed at at least one site, by vapor-depositing a metal layer on the electrical line which is also vapor-deposited on the exposed site of the ground conductor, such that the metal layer deposited on the line and shielding the line can be connected to ground through a ground line.
  • the electrical line according to the invention is composed of at least one insulated conductor on which, for example, electrical signals are transmitted for communications purposes, or on which an electrical current for the purpose of power transmission flows, and on which one ground conductor is created which is exposed at at least one site.
  • a metal layer is vapor-deposited on the line according to the invention to provide electromagnetic shielding. Since the ground conductor is exposed at at least one site, this site, which functions as a contact, is also provided with a metal layer by vapor deposition. When the ground conductor is grounded, the metal layer surrounding the electrical line is thus also grounded.
  • the line according to the invention is characterized both by high flexibility and by a completely HF-impervious shielding.
  • the vapor deposition of a metal layer onto the electrical line results in significantly lower cost than does jacketing by a wire braid or a copper tube, with the result that the electrical line according to the invention is characterized by high flexibility, completely HF-impervious shielding, and low fabrication costs.
  • FIG. 1 is a lengthwise cross section through an embodiment of a cable according to the invention including a conductor and a ground conductor;
  • FIG. 2 is a cross section through the embodiment
  • FIG. 3 is a cross section through an embodiment of a cable harness according to the invention.
  • FIG. 4 is a cross section through an embodiment of a flat cable according to the invention.
  • FIG. 1 is a cross section through an embodiment of a cable according to the invention including a conductor and a ground conductor.
  • a conductor A for the purpose of transmitting communications signals or power is surrounded by an insulation layer I.
  • a ground conductor MA routed parallel to conductor A is similarly surrounded by an insulation layer I.
  • Ground conductor MA is exposed at a site F.
  • a metal layer MS is applied by vapor deposition to the line, which layer surrounds the line and is vapor-deposited directly onto ground conductor MA such that ground conductor MA is electrically connected to metal layer MS which shields the line. By connecting ground conductor MA to ground, the line is effectively shielded.
  • FIG. 2 is a cross section through the embodiment of FIG. 1 .
  • FIG. 3 is a cross section through an embodiment of a cable harness according to the invention.
  • ground conductor MA Multiple conductors A and a ground conductor MA are arranged around a central conductor ZA, the ground conductor being exposed at a site F. All the conductors A as well as ground conductor MA are surrounded by insulation layer I. However, ground conductor MA is exposed at a site F.
  • the line composed of conductors A, ZA, and MA is surrounded by a vapor-deposited metal layer MS which is grounded.
  • FIG. 4 is a cross section through an embodiment of a flat cable according to the invention.
  • Ground conductor MA is exposed at a site F.
  • a metal layer MS is applied by vapor deposition to the surface of insulation layer I, which metal layer is vapor-deposited at exposed site F directly onto ground conductor MA which is grounded.
  • the electrical line according to the invention is suitable, for example, for installation in vehicles. It is characterized by high flexibility, complete electromagnetic shielding, and low fabrication cost.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Insulated Conductors (AREA)
  • Communication Cables (AREA)
  • Manufacturing Of Electric Cables (AREA)

Abstract

In order to combine high flexibility and complete electromagnetic shielding in an electrical line comprising at least one insulated conductor (A) surrounded by an insulation layer (1), an exposed ground conductor (MA) is provided at at least one site (F). A metal layer (MS) is applied by vapor deposition onto the line, said layer being applied directly onto the ground conductor (MA) at the exposed site (F). Alternatively, the ground conductor may be completely exposed. In another embodiment of the invention, the vapor-deposited metal layer (MS) is used as a ground conductor.

Description

  • The invention relates to an electrical line which comprises at least one insulated conductor.
  • In order to provide shielding from electromagnetic fields, electrical lines are, for example, surrounded by a braid of electrically conductive material. The braid is fabricated, for example, from metal wire or threads composed of electrically conductive polymers. Both the process of actually fabricating such braids and the process of jacketing an electrical line or electrical cable with a braid of this type requires some effort which is reflected in high fabrication costs.
  • While lines and cables jacketed with a wire braid are in fact characterized by high flexibility, they do not possess the optimal shielding. Optimal shielding is achieved only by using a solid jacket, such as that found in a solid-jacket coaxial line, also called a semi-rigid coaxial line. In a solid-jacket coaxial line, the shielding outer line is made in a semi-rigid form, using copper tubing, for example.
  • The more flexible the implementation of a shielded line, the less impervious is the conductor to HF, especially in the high frequency range. The more impervious a line is in its ability to provide shielding from electromagnetic fields, the less flexibility it possesses. Any improvement in one of the two parameters, flexibility and HF imperviousness, automatically results in a diminution of the other parameter. It is thus impossible to combine both high flexibility and optimal shielding in one electrical line.
  • The goal of the invention is therefore to design an electrical line so as to combine both high flexibility and high shielding, while at the same time reducing the cost of fabrication significantly below that of shielded lines of prior art.
  • The invention achieves this goal through the features indicated in claim 1 by providing at least one ground conductor which is exposed at at least one site, by vapor-depositing a metal layer on the electrical line which is also vapor-deposited on the exposed site of the ground conductor, such that the metal layer deposited on the line and shielding the line can be connected to ground through a ground line.
  • The electrical line according to the invention is composed of at least one insulated conductor on which, for example, electrical signals are transmitted for communications purposes, or on which an electrical current for the purpose of power transmission flows, and on which one ground conductor is created which is exposed at at least one site. A metal layer is vapor-deposited on the line according to the invention to provide electromagnetic shielding. Since the ground conductor is exposed at at least one site, this site, which functions as a contact, is also provided with a metal layer by vapor deposition. When the ground conductor is grounded, the metal layer surrounding the electrical line is thus also grounded.
  • Because the shielding according to the invention is achieved through a vapor-deposited metal layer, the line according to the invention is characterized both by high flexibility and by a completely HF-impervious shielding. In addition, the vapor deposition of a metal layer onto the electrical line results in significantly lower cost than does jacketing by a wire braid or a copper tube, with the result that the electrical line according to the invention is characterized by high flexibility, completely HF-impervious shielding, and low fabrication costs.
  • The following explains the invention in more detail based on embodiments illustrated in the figures.
  • FIG. 1 is a lengthwise cross section through an embodiment of a cable according to the invention including a conductor and a ground conductor;
  • FIG. 2 is a cross section through the embodiment;
  • FIG. 3 is a cross section through an embodiment of a cable harness according to the invention;
  • FIG. 4 is a cross section through an embodiment of a flat cable according to the invention.
  • FIG. 1 is a cross section through an embodiment of a cable according to the invention including a conductor and a ground conductor.
  • A conductor A for the purpose of transmitting communications signals or power is surrounded by an insulation layer I. A ground conductor MA routed parallel to conductor A is similarly surrounded by an insulation layer I. Ground conductor MA is exposed at a site F. A metal layer MS is applied by vapor deposition to the line, which layer surrounds the line and is vapor-deposited directly onto ground conductor MA such that ground conductor MA is electrically connected to metal layer MS which shields the line. By connecting ground conductor MA to ground, the line is effectively shielded.
  • FIG. 2 is a cross section through the embodiment of FIG. 1.
  • FIG. 3 is a cross section through an embodiment of a cable harness according to the invention.
  • Multiple conductors A and a ground conductor MA are arranged around a central conductor ZA, the ground conductor being exposed at a site F. All the conductors A as well as ground conductor MA are surrounded by insulation layer I. However, ground conductor MA is exposed at a site F. The line composed of conductors A, ZA, and MA is surrounded by a vapor-deposited metal layer MS which is grounded.
  • FIG. 4 is a cross section through an embodiment of a flat cable according to the invention.
  • Multiple conductors A as well as ground conductor MA are embedded side by side within insulation layer I. Ground conductor MA is exposed at a site F. A metal layer MS is applied by vapor deposition to the surface of insulation layer I, which metal layer is vapor-deposited at exposed site F directly onto ground conductor MA which is grounded.
  • The electrical line according to the invention is suitable, for example, for installation in vehicles. It is characterized by high flexibility, complete electromagnetic shielding, and low fabrication cost.
  • List of Reference Characters
    • A conductor
    • F exposed site
    • I insulation layer
    • MA ground conductor
    • MS vapor-deposited metal layer
    • ZA central conductor

Claims (7)

1. Electrical line comprising at least one insulated conductor, characterized in that at least one ground conductor is provided which is exposed at least one site, that a metal layer is applied by vapor deposition onto the electrical line, which layer is also vapor-deposited onto the exposed site of the ground conductor such that the metal layer vapor-deposited onto the line and shielding the line can be connected through the ground conductor to ground.
2. Electrical line according to claim 1, wherein ground conductor is completely exposed.
3. Electrical line according to claim 1, wherein the vapor-deposited metal layer is provided as the ground conductor.
4. Electrical line according to claims 1, wherein a metal layer is applied by vapor deposition onto a cable harness having a ground conductor which is exposed at at least one site.
5. Electrical line according to claims 1, wherein a metal layer is applied by vapor deposition onto a flat cable having a ground conductor which is exposed at least one site.
6. Electrical line according to claims 1, wherein a metal layer is applied by vapor deposition onto a flex line having a ground conductor which is exposed at least one site.
7. Electrical line according claim 6, wherein the electrical line is intended for installation in a motor vehicle.
US10/494,576 2001-10-23 2002-10-23 Electrical conductor Expired - Fee Related US7507904B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10152166A DE10152166C2 (en) 2001-10-23 2001-10-23 Electrical line
PCT/EP2002/011841 WO2003036658A1 (en) 2001-10-23 2002-10-23 Electrical conductor

Publications (2)

Publication Number Publication Date
US20050062037A1 true US20050062037A1 (en) 2005-03-24
US7507904B2 US7507904B2 (en) 2009-03-24

Family

ID=7703359

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/494,576 Expired - Fee Related US7507904B2 (en) 2001-10-23 2002-10-23 Electrical conductor

Country Status (6)

Country Link
US (1) US7507904B2 (en)
EP (1) EP1438726B1 (en)
JP (1) JP2005506673A (en)
AT (1) ATE366456T1 (en)
DE (2) DE10152166C2 (en)
WO (1) WO2003036658A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10324972B4 (en) * 2003-05-27 2009-01-02 Creavac - Creative Vakuumbeschichtung Gmbh Shielded cable and method and apparatus for making the same
DE102004056866A1 (en) * 2004-11-25 2006-01-26 Leoni Bordnetz-Systeme Gmbh & Co Kg Extruded flat cable has at least one screened conducting track embedded in insulating material, enclosed by shield, earth conductor that contacts shielding with at least one of its long sides, common casing
SE545186C2 (en) * 2021-09-08 2023-05-09 Habia Cable Ab Electrical cable and manufacturing thereof

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374299A (en) * 1980-05-19 1983-02-15 Belden Corporation Triboelectric transducer cable
US4564723A (en) * 1983-11-21 1986-01-14 Allied Corporation Shielded ribbon cable and method
US4645868A (en) * 1984-04-18 1987-02-24 Junkosha Company, Ltd. Electrical transmission line
US4926007A (en) * 1989-03-03 1990-05-15 W. H. Brady Co. Shielded flexible connector and process therefor
US5250127A (en) * 1988-09-20 1993-10-05 Fujikura Ltd. Method of manufacture for shielded flat electrical cable
US5455383A (en) * 1993-01-26 1995-10-03 Sumitomo Electric Industries, Ltd. Shield flat cable
US6093886A (en) * 1997-10-28 2000-07-25 University Of Rochester Vacuum-tight continuous cable feedthrough device
US20020074153A1 (en) * 2000-12-20 2002-06-20 Nexans Electrical line and process for producing the same
US6531658B2 (en) * 2000-12-21 2003-03-11 Autonetworks Technologies, Ltd. Shielded cable
US6643918B2 (en) * 2000-04-17 2003-11-11 Shielding For Electronics, Inc. Methods for shielding of cables and connectors

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1737860U (en) * 1956-10-27 1957-01-17 Max Grundig ELECTRIC WIRING WIRE WITH SOLDERABLE SHIELD, IN PARTICULAR FOR SOUND AND HIGH FREQUENCY.
DE6932840U (en) 1969-08-18 1969-12-18 Erbsloeh Julius & August PACKAGING CONTAINERS FOR VISUAL FILLING MATERIAL
DE6942185U (en) 1969-10-29 1970-01-29 Horst Find NEWSPAPER HOLDER
JPS54169781U (en) * 1978-05-22 1979-11-30
JP2743408B2 (en) 1988-11-11 1998-04-22 ミノルタ株式会社 Laser beam scanning speed correction method
JPH0590738A (en) 1991-09-26 1993-04-09 Hitachi Cable Ltd Manufacture of injection molding circuit parts
JPH05342918A (en) * 1992-06-05 1993-12-24 Yazaki Corp Flat cable with shield and manufacture thereof
US5416268A (en) * 1993-07-14 1995-05-16 The Whitaker Corporation Electrical cable with improved shield
JPH10134640A (en) 1996-10-31 1998-05-22 Harness Sogo Gijutsu Kenkyusho:Kk Cable and manufacturing method thereof
DE19728940A1 (en) * 1997-07-07 1999-01-14 Alsthom Cge Alcatel Cable with conductors and conducting sheath
JPH11120831A (en) * 1997-10-14 1999-04-30 Tatsuta Electric Wire & Cable Co Ltd Shielded flat cable
WO2000074080A1 (en) * 1999-06-02 2000-12-07 Composite Materials, L.L.C. An article shielded against emi and rfi

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374299A (en) * 1980-05-19 1983-02-15 Belden Corporation Triboelectric transducer cable
US4564723A (en) * 1983-11-21 1986-01-14 Allied Corporation Shielded ribbon cable and method
US4645868A (en) * 1984-04-18 1987-02-24 Junkosha Company, Ltd. Electrical transmission line
US5250127A (en) * 1988-09-20 1993-10-05 Fujikura Ltd. Method of manufacture for shielded flat electrical cable
US4926007A (en) * 1989-03-03 1990-05-15 W. H. Brady Co. Shielded flexible connector and process therefor
US5455383A (en) * 1993-01-26 1995-10-03 Sumitomo Electric Industries, Ltd. Shield flat cable
US6093886A (en) * 1997-10-28 2000-07-25 University Of Rochester Vacuum-tight continuous cable feedthrough device
US6643918B2 (en) * 2000-04-17 2003-11-11 Shielding For Electronics, Inc. Methods for shielding of cables and connectors
US20020074153A1 (en) * 2000-12-20 2002-06-20 Nexans Electrical line and process for producing the same
US6531658B2 (en) * 2000-12-21 2003-03-11 Autonetworks Technologies, Ltd. Shielded cable

Also Published As

Publication number Publication date
WO2003036658A1 (en) 2003-05-01
JP2005506673A (en) 2005-03-03
EP1438726A1 (en) 2004-07-21
DE50210425D1 (en) 2007-08-16
EP1438726B1 (en) 2007-07-04
DE10152166A1 (en) 2003-05-08
US7507904B2 (en) 2009-03-24
ATE366456T1 (en) 2007-07-15
DE10152166C2 (en) 2003-11-06

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